Which converters are you using? It may be time to replace mine as I was suffering massive blow-by for a few years, and they may be dead... Just want to keep in mind which model would be best for my 1997 Discovery.

I see quite a few models that are universal fits from Magnaflow, but do not see what makes the models better or lesser than the models listed on Amazon.

Magnaflow 94004

Magnaflow 94005

Magnaflow 99004HM

Magnaflow 99005HM

Magnaflow 445104

Opinions would be much appreciated, and I do understand the "non-CARB" compliance is only for California emissions.

 

Mine are gone, so I cant help.

 

I just installed them on mine, no issues to report yet. Just make sure to get them lined up so they dont touch anything otherwise the whole truck will vibrate.

 

Which model did you go with?

 

I went with the Magnaflow 94005's
He is a write up I found regarding on installing them that I used, I figured it might be helpful.

http://www.discoweb.org/cats.htm